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4-Axis SCARA Robots

4-Axis SCARA (Selective Compliant Assembly Robot Arm) robots provide a circular work envelope with a broad range of movement for added flexibility.

SCARA robots are based on a 4-axis design with motion similar to that of a human arm. The arm is slightly compliant in the X-Y direction but rigid in the Z direction – thus “selective compliant” in Selective Compliant Assembly Robot Arm (SCARA). They have a small footprint and can be built on a smaller scale. Some SCARA robots offer high speed, heavy payload, high precision, large work envelopes with fully integrated options.

two 4-axis robots


Typical plastic injection molding automation applications for top entry 4-axis SCARA robots include:

  • Insert Loading Automation
  • Stacking Automation
  • Packaging Automation
  • Palletizing Automation
  • Inspection Automation
  • Assembly Automation

Robotic Automation Systems employs both Epson Robots and FANUC Robotics 4-axis SCARA robots in our turnkey plastic injection molding automation solutions. Applications typically include loading and unloading vertical injection molding machines, presenting a complement of inserts upstream of a 3-axis robot or 6-axis robot, or assembly automation in high tolerance applications.

Additional Robots

Learn more about other types of robots Robotic Automation Systems employs for plastic injection molding automation, including 3-axis or top entry robots, 6-axis robots or articulated robots, collaborative robots (cobots), side entry robots, and servo sprue pickers.

Getting Started

Discover more about Robotic Automation Systems, why plastic injection molders choose to partner with us, and what our clients have to say about our expertise, service, and solutions. Contact us to start a conversation about your automation needs.

Integrators for the Plastics Industry